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first longwall mining would occur not in the Cottonwood lease area but instead <br />in the North Roadside area where no structures or renewable resources lands exist. <br />Powderhorn proposes to provide an appropriate subsidence monitoring system to <br />obtain data necessary to make accurate subsidence predictions needed to design a <br />subsidence control plan for longwall mining. Before mining longwall panels in <br />the Cottonwood lease area, which underlie structures or renewable resource lands. <br />A subsidence control plan approved by the Division will be implemented. <br />Regarding survey monuments adjacent to the water district treatment facilities, <br />the revised mine plan precludes the need to monitor the treatment facilities. <br />Survey monuments have been established at 300-foot intervals along the Ute water <br />pipelines. These monuments are 7/8-inch rebar set approximately 18 inches into <br />the ground. <br />Summary of Review Process <br />The Roadside and Cameo mine current production is currently 1,500,000 tons <br />of raw coal per year. Powderhorn intends to allow the final responses to be <br />incorporated into the permit on the day after the proposed May 13, 1982 meeting. <br />